利用定时器产生一个2kHz 的正弦信号。定时器被设置成每25uS 产生一次中断（等效于采样速率为40K）。利用该中断，在中断服务程序中用叠代算法计算出一个SIN值，并利用CCS 的图形显示功能查看波形。开发环境为ccs2.2，硬件为DES5410APP-U开发板。-Use timer to produce a 2kHz sinusoidal signal. Timer is set to generate an interrupt each 25uS (equivalent to the sampling rate of 40K). Use of the interrupt, the interrupt service routine using the iterative algorithm to calculate the value of a SIN, and use of CCS in the graphical display feature to see the waveform. Development environment for the ccs2.2, hardware development board for the DES5410APP-U.